How do I display certain data on top of others using multiple Scatter plots

Question

Steven Yeh 2021-8-2

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/890782-how-do-i-display-certain-data-on-top-of-others-using-multiple-scatter-plots

评论： Steven Yeh 2021-8-3

scatter(real(SGG(ids)),imag(SGG(ids)),10,[0 1 0],'filled');
hold on
for abc=1:M
    scatter(1*cos((2*abc-1)*pi/M),1*sin((2*abc-1)*pi/M),35,[0 0 1],'filled');
end
scatter(real(SRR(idx)),imag(SRR(idx)),10,[1 0 0],'filled');
xlabel('Real Part');
ylabel('Imaginary Part');
title('ACE For MaxMin');
legend([scatter(real(SGG(ids)),imag(SGG(ids)),10,[0 1 0],'filled'), ...
    scatter(1*cos((2*abc-1)*pi/M),1*sin((2*abc-1)*pi/M),15,[0 0 1],'filled'),...
    scatter(real(SRR(idx)),imag(SRR(idx)),10,[1 0 0],'filled')],'Correct-Decoded Signal','QPSK Signal','Error-Decoded Signal');
xlabel('Real Part');
ylabel('Imaginary Part');
title('ACE For MaxMin');
hold off

The above are the codes that I used to create multiply scatter plots, but everytime the second scatterplot's data gets overlapped by the other scatterplots.

for abc=1:M

scatter(1*cos((2*abc-1)*pi/M),1*sin((2*abc-1)*pi/M),35,[0 0 1],'filled');

end

This is the scatter plot data that I want to display at the very top without other data overlapping it, is there a way to do that?

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darova 2021-8-2

Can't you display it at the same end?

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Answer 1

Dave B 2021-8-2

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/890782-how-do-i-display-certain-data-on-top-of-others-using-multiple-scatter-plots#answer_759287

在 MATLAB Online 中打开

You can manipulate the stacking order in the axes by changing the order of the axes children vector or using the ustack function:

ax=gca;
h1=scatter(ax,rand(1000,1),rand(1000,1),100,'filled','r');
hold on
h2=scatter(ax,rand(1000,1),rand(1000,1),100,'filled','b');
ax.Children=[h1;h2]; % display the red one on top of the blue one

uistack(h1); % display the red one on top

Note: your call to legend is suspicious, it looks like you're making additional scatters (?) If you capture the output of the scatters in a variable, you can pass that variable to legend rather than calling scatter again.

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Steven Yeh 2021-8-3

Thanks a lot, this works perfectly, and thanks for correcting my code, the scatter in legend did seem redundant, I’ve set new variables to each scatter and everything works. Thanks a lot again!

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